Photographers who want to use strobe in the field are often confronted with the problem of powering their lights. Many commercial options are available for purchase but they are often expensive. Alien Bee offers the Vegabond II system for $300.00. It consists of a 12 volt battery, a pure sine wave inverter, a charger, and a carrying case. If you want convenience, buying a commercial product is your best option.
There are several reasons you may want to go with a D.I.Y. solution. A system you build yourself is often less expensive, more flexible, and more powerful than a pre-built system. A custom power pack solution offers you the flexibility of choosing a battery size to suit the shooting needs. It also allows you to power your system from your car battery if you will be shooting near your vehicle.